Table 1.

Sleep parameters before and during the COVID-19 restriction phase

	During COVID-19 (M)	SD	Before COVID-19 (M)	SD	T	Df	P-value
Wake week	08:03	01:33	07:08	01:10	17.575	679	<0.001
Wake weekend	09:06	01:31	09:16	01:26	−4.633	676	<0.001
Bed week	23:52	01:30	23:19	01:11	13.072	679	<0.001
Bed weekend	00:27	01:33	00:31	01:28	−1.687	679	0.092
Sleep duration week	08:11	01:01	07:49	01:09	8.784	679	<0.001
Sleep duration weekend	08:39	01:05	08:45	01:12	−2.765	676	0.006
Sleep duration average	08:19	00:57	08:05	00:59	6.86	676	<0.001
MS weekday	03:57	01:26	03:13	01:02:04	17.295	679	<0.001
MS weekend	04:47	01:26	04:53	01:19:29	−3.482	676	0.001
MSFsc	04:36	01:29	04:33	01:20:21	1.385	676	0.167

SD standard deviation; M mean; Df degrees of freedom; MS midpoint of sleep; MSFsc midpoint of sleep corrected